<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <!-- vue特点：数据一旦改变，界面就跟着变 -->
        <!-- 当点击按钮时，把msg变成'鸡杀马'的字符串 -->
        <!-- <button v-on:click=" msg = '鸡杀马' ">修改msg</button>
        <button v-on:click=" fn1 ">修改msg和age-调用函数</button>
        <button v-on:click=" fn2('萨瓦迪卡') ">修改msg调用函数并传参</button> -->

        <!-- 简写形式 -->
        <!-- 把v-on:全部替换成@ -->
        <!-- @事件名 -->
        <button @click=" msg = '鸡杀马' ">修改msg</button>
        <button @click=" fn1 ">修改msg和age-调用函数</button>
        <button @click=" fn2('萨瓦迪卡') ">修改msg调用函数并传参</button>


        <p>{{ msg }}</p>
        <p>{{ age }}</p>
    </div>
    <script src="./vue.js"></script>
    <script>
        new Vue({
            el: '#app',
            data() {
                return {
                    msg: '马杀鸡',
                    age: 16
                }
            },
            methods: {
                fn1 () {
                    // 在JS部分访问vue里的数据，前面要加this
                    this.msg = '抠你鸡蛙'
                    this.age += 10
                },
                fn2 (m) {
                    this.msg = m
                }
            }
        })
    </script>
</body>
</html>